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广西师范学院 化学与材料科学学院,广西 南宁,530001
纸质出版日期:2017-11-5,
收稿日期:2017-4-11,
修回日期:2017-7-6,
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于淑娟, 汪丰, 罗振静等. 壳聚糖基聚合物点荧光材料的合成及其对纸张的抗紫外老化性能[J]. 发光学报, 2017,38(11): 1443-1449
YU Shu-juan, WANG Feng, LUO Zhen-jing etc. Synthesis of Chitosan-based Polymer Carbon Dots Fluorescent Materials and Their UV Aging Resistance Properties for Paper[J]. Chinese Journal of Luminescence, 2017,38(11): 1443-1449
于淑娟, 汪丰, 罗振静等. 壳聚糖基聚合物点荧光材料的合成及其对纸张的抗紫外老化性能[J]. 发光学报, 2017,38(11): 1443-1449 DOI: 10.3788/fgxb20173811.1443.
YU Shu-juan, WANG Feng, LUO Zhen-jing etc. Synthesis of Chitosan-based Polymer Carbon Dots Fluorescent Materials and Their UV Aging Resistance Properties for Paper[J]. Chinese Journal of Luminescence, 2017,38(11): 1443-1449 DOI: 10.3788/fgxb20173811.1443.
以壳聚糖、柠檬酸、N-(2-羟乙基)乙二胺为原料,通过水热法合成了壳聚糖基聚合点(P (CS-g-CA) Ds)荧光材料,发现柠檬酸的接枝可明显提高壳聚糖聚合物点的量子产率。对P (CS-g-CA) Ds进行了红外光谱、紫外光谱、光电子能谱、透射电镜、热分解性能及光致发光光谱表征,测试了不同pH值下的荧光强度。结果表明,P (CS-g-CA) Ds在pH=4~12范围内有良好的稳定性。通过测试紫外老化前后宣纸的羰基指数和乙烯基指数研究了P (CS-g-CA) Ds在宣纸中的应用,结果表明其具有良好的抗紫外老化性能。
Fluorescent materials P(CS-g-CA)Ds were prepared by hydrothermal method using chitosan
citric acid
and N-(2-hydroxyethyl) ethylenediamine as raw materials. It was found that grafted citric acid could significantly increase the quantum yield of chitosan polymer carbon dots. The P(CS-g-CA)Ds were characterized by infrared spectroscopy
ultraviolet spectroscopy (UV)
X-ray powder diffraction
X-ray photoelectron spectroscopy
transmission electron microscopy
thermal decomposition and photoluminescence spectra. The fluorescence performance tests at different pH values show that P(CS-g-CA)Ds have excellent stability in the pH range of 4-12. The application performance of P(CS-g-CA)Ds in rice paper was studied by testing the carbonyl index and the vinyl index of the paper before and after UV aging. The results demonstrate that P(CS-g-CA)Ds have good UV aging resistance performance.
壳聚糖柠檬酸聚合物点荧光材料紫外光老化
chitosancitric acidpolymer carbon dotsUV aging
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